7Regal Casino - 100% 1st deposit bonus not credited

I registered via the link from this website after seeing the 100% bonus and checked the terms and conditions and made a deposit of 20GBP not realizing that I was not eligible to receive the bonus as I chose to use GBP. This was not specified anywhere even though they did take the deposit but if I change the currency to Euro or AUD as they are in my Territory and make another deposit I will be eligible for the bonus but as it will be the 2nd deposit I have doubts whether they will give it. I have copied the chat conversation where she explains but as it is not written anywhere I believe it is unfair